BADOUR, Yazan; DANTO, Sylvain; LABRUGÈRE, Christine; DUTTINE, Mathieu; GAUDON, Manuel

doi:10.1007/s11664-021-09389-3

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BADOUR, Yazan
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

DANTO, Sylvain
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

LABRUGÈRE, Christine
Plateforme Aquitaine de Caractérisation des Matériaux [PLACAMAT]

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Ce document a été publié dans

Journal of Electronic Materials. 2022, vol. 51, n° 4, p. 1555-1567

Institute of Electrical and Electronics Engineers

Résumé en anglais

In this work, 0%, 0.5%, 1%, and 2% Cu-doped WO3 nanoparticles were synthesized via a polyol method. The as-synthesized materials were characterized by x-ray diffraction, scanning electron microscopy (SEM), electron paramagnetic resonance (EPR), x-ray photoelectron spectroscopy (XPS), and UV-Vis photochromic activity. A bond valence model was adopted to explain the relationship between the lattice parameter and Cu percentage. Additionally, two films (1% Cu-doped and un-doped samples) obtained by dip-coating from a well-dispersed suspension were optically investigated using ex situ and in situ UV-Vis spectrometry; coloring/bleaching kinetics were thoroughly studied. The Cu-doped WO3 film was found to have a high-quality bleaching mechanism (five times as fas as the un-doped WO3 film). Finally, the high bleaching performance of the doped films was confirmed by successive cycling, showing that the as-prepared compounds are of great interest for smart window applications, for example.< Réduire

DOI

http://dx.doi.org/10.1007/s11664-021-09389-3

Project ANR

University of Bordeaux Graduate Scholl in Light Sciences & Technologies - ANR-17-EURE-0027

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Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026